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Finding the Fourth Proportional to 346,889.76, 478,717.20 and 195,983.52

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Solution

The fourth proportional to 346,889.76, 478,717.20 and 195,983.52 is: 270,462.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,889.76 : 478,717.20 = 195,983.52 : x
  2. Step 2: Convert to fraction form
    346,889.76/478,717.20 = 195,983.52/x
  3. Step 3: Cross multiply
    346,889.76x = 478,717.20 × 195,983.52
  4. Step 4: Simplify right side
    346,889.76x = 93,820,681,940.54
  5. Step 5: Solve for x
    x = 93,820,681,940.54/346,889.76
  6. Step 6: Final answer
    x = 270,462.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.